Boiler tube or flue cutter.



PATENTE JUNE 1 9 Rw. PUTSGH. D 6 l 08 BOILER TUBE 0R FLUE GUTTER.

APPLIOATION FILED NOV. 25, 1907.

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795. PATENTED JUNE 16 1908. No 890' P. w. PUTsoH..

B oILBR TUBE 0R FLUB GUTTER.

APPLICATION FILED NOV. 25, 1907. 2 SHEETS BREET v2.

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FREDRIGH W. PUTSCH, OF SALINA, KANSAS.

BOILER TUBE OR FLUE CUTTER.

Specification of Letters Patent.

Patented June 16, 1908.

Application led November 25, 1907. Serial No. 403,780.

To all whom it may concern:

Be it known that 1, FREDRICH W. PUTscH, a citizen of the United States, residing at Salina, in the county of Saline and State of Kansas, have invented certain new and useful Improvements in Boiler Tube or Flue Cutters and l do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvement in boiler tube or flue cutters. l

The princi al obj ect is the production of a sim le and e Vciently operating device of this kin equipped with cutting means which may be adjuste to permit of the insertion of the device into a boiler tube or flue and after such insertion be adjusted to cut the tube or flue by a roper manipulation of the device.

With the foregoing and other objects in view, the invention consists of certain novel features of construction, combination and arrangement of parts, as will be more fully described and particularly pointed out in the ap ended claims.

' n the accompanying drawings: Figure 1 is a plan view of the device constructed in accordance with the invention. Fig. 2 is a central longitudinal sectional view of the invention as applied. Fig. 3 is a similar view, showing the relative position of the parts after the cutting operation. Fig. 4 is a cross sectional view cut on the line 4 4 of Fig. 2. Fig. 5 is a similar view, taken on the line 5 5 of Fig. 2. Fig. 6 is a cross sectional view taken on the line 6 6 of Fig. 1. Fig. 7 is a view in side elevation of the cutting member on an enlarged scale, and Fig. 8 is a cross secj tion of the line 8 8 of Fig. 2.

Referring more articularly to the drawings, which are for lustrative purposes only, and therefore not drawn to scale, the numeral 1 indicates a suitable handle or body of preferably tubular form having coupled to its inner end by a coupling member 2, theinner reduced end or stem 3 of'a suitable guide member 4. This member is of tubular form and is formed with a central cylindrical body ortion 5 having a central guide opening 6 eading from the wall of its bore and being slotted at the ends of such opening, as at 7, the purpose of which will be disclosed. The

the carrier is formed of a suitable recess or bifurcation 12 in which is arranged for rotation a cutting disk or member 13. An adjusting spindle 14 is arranged to extend through the handle and guide member. This spindle is provided intermediately of its ends', preferably near its outer end with a gradually tapered portion 15 and at the outer end of such portion with a threaded stem 16. A tubular sleeve 17 of uniform diameter throughout its length has riveted or other wise secured to its inner end and inner face an annular band or ring 18, the internal diameter of which corresponds with the diameter of the outer reduced end portion of the guide member. Said sleeve is fitted in position by slipping the band or ring 18 over the outer reduced end portion of the guide member and fitting a fastening plate within the sleeve against the band or ring and fastening this plate to the outer end of said reduced end portion by fastening screws '19 or other e uivalent means. Said sleeve has forme or fixed to its outer face at its inner or ring end a circu-mferential series of inclined teeth 20, the purpose of which will be disclosed. An end plate or disk 21 is arranged within and at the outer end of the tubular sleeve 17 and is removably maintained in position by fastening screws 22 adapted to be screwed in corresponding threaded apertures 23 in the sleeve and in corresponding threaded sockets 24 formed in the periphery of the end plate or disk, said disk being formed with a central threaded bore 25 for receiving the threaded stem of the adjusting member or spindle 14.

ln carrying out the invention the bottom of the carrier is formed with a central longitudinal depression or groove 26 for receiving the tapered portion of the adjusting spindle, which permits of said spindle being moved longitudinally with greater facility. An in-v clined opening 27 is formed in the inner reduced portion of the guide member in which is ada ted to be inserted or arranged a plurality o longitudinally disposed resilient elements or springs 28 of gradually increasing lengths, the longer of said elements projecting into the bore of the guide member and engages the inner end of"an extension 28 extending over the adjacent end of the carrier axle, said extension constituting yieldable retaining means for retaining the carrier in position. The outer ends of said spring are provided with registering apertures 29 through which is adapted to be passed a fastening screw 30 adapted for screwed engagement with a threaded aperture formed in the. inner reduced end or portion of the guide member.

Removably fixed to the inner reduced end portion of the guide member by fastening screws 3l or other equivalent means, and spaced a suitable distance from the inner end of the body portion 5 thereof is a collar or ring 32, said collar being preferably of a diameter to correspond with that of the body, portion.

An annulus 33 is mounted for rotation` between the collar or ring 32 and inner end of the cylindrical body portion of the guide member, said annulus being of slightly greater diameter than that of the body portion and collar or ring, the purpose of whichI will be shownA A two-way coupling 34 is secured to the outer end of the handlel l and is formed in its walls with laterally spaced apertures. The apertures of the upper wall being adapted for registration With those of the other wall,

The numeral 36 indicates a suitable handle which is fastened to the coupling by passing, the side bars or members 37 thereof through the apertures of the coupling and screwing it in position by a fastening plate 3 8 having apertures for the reception of said side bars or members and nuts 39 adapted for screwed engagement with 4the fastening plate. A handle 40 in the form ofa wheel is fixed to the outer end of the adjusting spindle in any suitable manner.

In practice, the s indle is turned orrotated in a left hand direction by the operator grasping the handle 40 thereof, which causes the spindle to move longitudinall in an upward direction, rIhe larger en 'of the tapered portion l5 of the spindle is arranged at the rear end of thecutter so that as the spindle is moved longitudinally by turning the handle 40 the carrier will be raised. In the application of the invention the spindle is turned to the right until the carrier frame has been sufliciently lowered to permit of the insertion of the device into a boiler tube or flue. The handle is then turned to the left as before described, causing the carrier to move upwardly in the guide opening of the guide member until the cutting'wheel or e lar disk engages the inner wall of the boiler tube or iiue to be cut. The guide member and handle is then turned in either direction by means of the handle 36 causin the cutting disk to describe a complete circ e and cut the tube or flue.

From the construction defined, it will be seen, that the inclined teeth 20 of the tubular sleeve and the collar or ring 32 will engage the inner Wall of the tube or iiue and remain stationary while the guide member and haiidle are being turned by the operator, said sleeve and collar or ring constituting bearings for the guide member to rotate in. The spindle is then turned to the right until the carrier is in inoperative or lowered position, when the device is withdrawn from the tube or iiue.

Having thus described my invention, what I claim as new and desire to secure by Letters-Patent is: i

l. A tube or flue cutter embracing a tubuuide member havin a guide opening leading from its bore anti tions, a tubular sleeve fitted on the outer end .portion of the guidemember, said sleeve having a series of peripheral teeth formed on its outer face, an annulus mounted for rotation at the inner end of the guide member, the

. internal diameter of said annulus corres onding with the greatest diameter of said s eeve, a carrier arranged for movement in the guide opening, a cutting disk rotatably mounted in the carrier, a handle fixed to one end of the, guide member, means for adjusting the carrier, and yieldable retaining means for the carrier.

2. A device of the character specified, einbracing a tubular guide member formed With a guide opening in its wall, a tubular member loosely fitted to one end of the guide member, said tubular member being formed with a series of peripheral teeth, an annulus of greater diameter than the guide member mounted for rotation at the opposite end of the latter, a` handle fixed to one end of the guide member, an adjusting spindle having an intermediate outwardly increasing tapered portion for slidably engagingV the carrier to adjust it in the guide opening and yieldable retaining means for the carrier.

3. A tube or flue cutter, embracing a tubular guide member havin@ aguide opening `leadingfrom its bore and longitudinal slots leading from the wall of its opening, a carrier arranged forc movement in the guide opening, an axle extending through the carrier,

ythe ends of the axle projecting beyond the same and fitting in the slots of the uide -member, a tubular sleeve formed, with a series of peripheral teeth loosely fitted to. yone end of the guide member, an annulus mounted for rotation at the opposite end of the guide member, said sleeve and annulus constituting bearings for the guide member,

reduced end pora disk tted at the outer end of the sleeve, an adjusting spindle having a threaded stern to screw through said disk an `outwardly increasing and tapered portion at the end of its stern for slidably engaging under the carrier and yieldable retainlng means for the carrier.

In testimony whereof I have hereunto set my hand in presence of tWo subscribing Witnesses.

FREDRICH W. PUTSCH. Witnesses:

A. E. HALsEY, H. T. WELCH. 

